| Sviatoslav | |
| Gender: | Male |
| Meaning: | "Holy worshipper", "Bright glory" |
| Region: | Eastern Europe |
| Origin: | Slavic languages |
| Nickname: | Svetlyo (Bulgarian), Slava (Russian), Polish: Świętek|italic=no (Polish), Slavik (Ukrainian), Svet (Bulgarian and Russian), Sveto (Ukrainian) |
| Related Names: | Svetoslav, Svatoslav, Świętosław, Svetislav |
Sviatoslav (Russian: Святосла́в|Svjatosláv, pronounced as /ru/; Ukrainian: Святосла́в|Svjatosláv, pronounced as /uk/) is a Russian and Ukrainian given name of Slavic origin. Cognates include Svetoslav, Svatoslav, Polish: [[Świętosław (disambiguation)|Świętosław]]|italic=no, Svetislav. It has a Pre-Christian pagan character and means "one who worships the light" (likely in reference to the sun). In Christian times the name's meaning started to be associated with the Proto-Slavic roots Slavic languages: *svętъ|italic=yes (holy, light, world) and Slavic languages: *slava (glory), to be explained as "One who worships the Holy".A diminutive form for Sviatoslav is Svetlyo (Bulgarian), Slava (Russian), Polish: Świętek|italic=no (Polish), Slavko, Sveto, Svet, Sviat, Sviatko (Ukrainian). Its feminine form is Sviatoslava. The name may refer to: